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support pep 3118 format strings for ctypes objects with nontrivial shapes (closes #10744)

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Patch by Matti Picus.
This commit is contained in:
Benjamin Peterson 2014-05-17 14:59:12 -07:00
parent 5d52022406
commit 5eb6b39210
5 changed files with 74 additions and 15 deletions
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14
Lib/ctypes/test/test_pep3118.py
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@ -96,6 +96,9 @@ class EmptyStruct(Structure):
class aUnion(Union):
_fields_ = [("a", c_int)]
class StructWithArrays(Structure):
_fields_ = [("x", c_long * 3 * 2), ("y", Point * 4)]
class Incomplete(Structure):
pass
@ -145,10 +148,10 @@ native_types = [
## arrays and pointers
(c_double * 4, "(4)<d", (4,), c_double),
(c_float * 4 * 3 * 2, "(2,3,4)<f", (2,3,4), c_float),
(POINTER(c_short) * 2, "(2)&<h", (2,), POINTER(c_short)),
(POINTER(c_short) * 2 * 3, "(3,2)&<h", (3,2,), POINTER(c_short)),
(c_double * 4, "<d", (4,), c_double),
(c_float * 4 * 3 * 2, "<f", (2,3,4), c_float),
(POINTER(c_short) * 2, "&<h", (2,), POINTER(c_short)),
(POINTER(c_short) * 2 * 3, "&<h", (3,2,), POINTER(c_short)),
(POINTER(c_short * 2), "&(2)<h", (), POINTER(c_short)),
## structures and unions
@ -160,6 +163,9 @@ native_types = [
(EmptyStruct, "T{}", (), EmptyStruct),
# the pep does't support unions
(aUnion, "B", (), aUnion),
# structure with sub-arrays
(StructWithArrays, "T{(2,3)<l:x:(4)T{<l:x:<l:y:}:y:}", (), StructWithArrays),
(StructWithArrays * 3, "T{(2,3)<l:x:(4)T{<l:x:<l:y:}:y:}", (3,), StructWithArrays),
## pointer to incomplete structure
(Incomplete, "B", (), Incomplete),